Rain brings temporary increases in spring flow and groundwater levels — 2021 Oct. Hydro Report


Even with 3-4″ of rain in the last week, area Middle Trinity springs have almost returned pre-rain flow conditions. Pleasant Valley and Park Springs on the Blanco River upstream of Fischer Store Road saw a temporary increase in baseflow, but flow has returned to 16 cubic feet per second (cfs). Baseflow at Jacob’s Well is … Continue reading Rain brings temporary increases in spring flow and groundwater levels — 2021 Oct. Hydro Report

Results from Well Visits – Trinity Aquifers


This summer the Watershed Association teamed up with the Comal Trinity Groundwater Conservation District and the Hays Trinity Groundwater Conservation District and visited over 60 private wells in northern Comal County and western Hays County. Many thanks to all participating well owners!  It is our hope that the measurements made during the site visits were … Continue reading Results from Well Visits – Trinity Aquifers

Water levels and spring flow on the decline (again) – 2021 Sept Hydro Report


With above average rainfall for Central Texas, surface vegetation is thriving, rainwater catchment systems are full, but aquifer conditions aren’t doing as well. Water levels in monitor wells rose after this summer’s wet conditions, but they’ve started to decline again. Similarly, after summer rains baseflow increased from Middle Trinity springs (Jacob’s Well and Pleasant Valley … Continue reading Water levels and spring flow on the decline (again) – 2021 Sept Hydro Report

US FWS Proposed Listing for Six Texas Mussel Species


Aquatic species, like freshwater mussels, are particularly useful as indicators of water quality.  They have limited range and rely heavily on the surrounding aquatic community to reproduce.  Since they’re largely immobile, water quality and habitat degradation pose significant risks. Loading of creeks and rivers with fine sediments, low-flow and drought, and water quality changes negatively … Continue reading US FWS Proposed Listing for Six Texas Mussel Species